All Entries Tagged With: "base64"

Convert Base64 encoded bitmap to file in C#

The static FromBase64String method on the Convert class returns a byte[] that contains the decoded elements of the String.

byte[] imageBytes = bmpAsString.Base64DecodeString();
using (FileStream fstrm = new FileStream(@"C:\recdcopy.bmp",FileMode.CreateNew, FileAccess.Write))
{
using (BinaryWriter writer = new BinaryWriter(fstrm))
{
writer.Write(imageBytes);
}
}

Decoding a Base64-Encoded binary

Using the static method Convert.FromBase64String on the Convert class, an encoded String may be decoded to its equivalent byte[].
Example:

using System;
static class MyModClass
{
public static byte[] Base64DecodeString(this string inputStr)
{
byte[] decodedByteArray = Convert.FromBase64String(inputStr);
return (decodedByteArray);
}
}

Encode a bitmap file into a string using Base64 in C#

byte[] image = null;
using (FileStream filestrm = new FileStream(@"C:\mypic.bmp",FileMode.Open, FileAccess.Read))
{
using (BinaryReader reader = new BinaryReader(filestrm))
{
img = new byte[reader.BaseStream.Length];
for (int i = 0; i < reader.BaseStream.Length; i++)
{
img[i] = reader.ReadByte( );
}
}
}
string ConvertedbmpAsString = img.Base64EncodeBytes();

Encode binary data As Base64 in C#

Generally a byte[] representing some binary information, such as a bitmap is encoded into a string so that it can be sent over a binary-unfriendly transport, such as email, using Base64.
The static method Convert.ToBase64String on the Convert class can be used on a byte[] to encode to its String equivalent
Example:

using System;
using System.IO;
static class MyModClass
{
public static [...]

XML-RPC Base64-Encoded Binary Data Type

To transfer binary information via XML-RPC we need to encode the data in base64 (serialization) and use the base64 tags as xml tags.
Example Declaration:

<param>
<value>
<base64>UHSYDhD1423Cc0Ad3NVP4OidTd8E1kRY5Edh</base64>
</value>
</param>

Since PHP does not have a binary data type, developers need to encode files in base64 for XML-RPC transfer by using the file_get_contents function.